EP 0353413 B1 19920304 - PLY BELLOW
Title (en)
PLY BELLOW
Publication
Application
Priority
DE 3822746 A 19880705
Abstract (en)
[origin: JPH0246368A] PURPOSE: To simplify manufacture so as to facilitate the production of various different bellows by composing a laminated protector to be a bellows body of at least a carrier (base) layer, an outer layer and an inner reinforcing layer, and surface-welding the respective layers of the protector together. CONSTITUTION: A laminated protector (a bellows body) 1 consists of a carrier layer 2, an outer layer 3 on the outside, and a reinforcing laver 4 on the inside, and these three layers 2-4 are welded together over the whole surface. In the case of continuously producing this, for example, rolls 19-21 corresponding to the respective layers 4, 2, 3 are used, and the width B of the rolls corresponds to the axial length of one standard bellows. The reinforcing layer 4 is sent to a punching process 22, and the layers 2, 3 and the punched reinforcing layer 4 are sent together to a welding process 23 with a hot press placed, for example, where three layers 2-4 are integrally welded over the whole surface. The welded body is cooled in a cooling process 24, and then sent to a following cutting process 25 and cut in each section along a line 26.
IPC 1-7
IPC 8 full level
B32B 27/08 (2006.01); F16J 3/04 (2006.01)
CPC (source: EP US)
B32B 3/266 (2013.01 - US); B32B 5/022 (2013.01 - US); B32B 5/026 (2013.01 - US); B32B 27/08 (2013.01 - EP US); B32B 27/12 (2013.01 - US); B32B 27/304 (2013.01 - US); B32B 27/34 (2013.01 - US); B32B 27/40 (2013.01 - US); F16J 3/041 (2013.01 - EP US); Y10T 156/109 (2015.01 - EP US); Y10T 156/1097 (2015.01 - EP US); Y10T 428/1366 (2015.01 - EP US); Y10T 428/1393 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0353413 A1 19900207; EP 0353413 B1 19920304; DE 3822746 A1 19900111; DE 58900910 D1 19920409; ES 2029546 T3 19920816; JP H0246368 A 19900215; US 5021271 A 19910604
DOCDB simple family (application)
EP 89109440 A 19890524; DE 3822746 A 19880705; DE 58900910 T 19890524; ES 89109440 T 19890524; JP 16513889 A 19890627; US 36787989 A 19890619